 Although others have developed into a superhuman race as well, Superman promised his successors greater powers if they pledged to always protect Earth and the solar system.Kal Kent appears in a cameo in the animated film "All-Star Superman" as one of Superman's descendants from the far future.In the movie, Superman shows Lois Lane on his time telescope Kal Kent, the Superman of the 84th century who has just "fought the mad god Darkseid in year 8315".